To recover all your life at anytime just press F9. You can also do this just as you die (I.E You fall in the spikes and die, then you press F9. You will come back to life). Note: Using this at bosses will bring up a weird screen, if this happens press space to get rid of the screen, and quickly press F9 again.

First off, to do this you need at least 1 special weapon. For Infinite Ammo only, turn on your special weapon and press "1" on your keyboard. For Infinite Ammo+Rapid Fire, turn on your weapon and press "2" on your keyboard. For the Flying trick turn on a special weapon and press "3" on your keyboard, to fly press and hold up on your controls, then you can fly in any direction you want (You cannot do fly and rapid fire at the same time). Note: When I did this I also got all the buster upgrades. So if you do this the buster upgrades won't be where you get them, because you already have them. This saves, so if you want to get the buster upgrades yourself DO NOT DO THIS (The flying, infinite ammo, and rapid fire don't save).

EGO-Get every character for your team (including LWU1, Blue Chip, Orion, Damon, and Vincent are on both teams, Damon isn't in his Harbringer form). This doesn't save.

MAV-Brings you straight to the maverick door.

LEV-Exits level and brings you to save screen.

CRE-View credits, press ESCAPE to leave them.

WAR-I can't do it, but it's supposed to let you cycle through all weapons, includings ones you don't have.

Note: You must hold down the three buttons in order for a few seconds for them to work (Does not need to be in CAPS). The music will stop until you die if you do the EGO trick.

At the boss selection screen press F6, then choose a level. Do the LEV trick to exit the level and you will now be at the final level, with all the weapons.

Go to the Fire Beast stage, find Damon's capsule, then use the EGO trick. Pick Damon, and jump in the capsule, do the LEV trick and save. You will now have Harbringer Damon (Works with both teams).

To skip the first level simply got to continue on an empty file. But you will have X and not be able to choose Zero.

The first player has to select a player that is already selectable. Then the other players put their controls on the character they want (The ? marks) then the first player presses start. Viola, you have the characters you had put your selectors on.

When you make it to Siggy use the EGO trick. Then when you pick your character you will be fighting Armageddon Siggy.

With the editor you can place the Harbringer capsule anywhere, in any level and it will still work with Damon and turn him into Harbringer. This is an easy way to get Harbringer.

If you use the Stellar Armor X-Attack while the enemy is behind you it does more damage.